Valve stem puller



. @est 25, 3949. v F. D. WEBSTER 23459934 VALVE STEM FULLER Filed June 10, 1947 Patented Oct. 25, 1949 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to devices for facilitating the mounting of automobile tires on rims, and more particularly to a tool for pulling the valve stem of the inner tube through the rim.

In the usual procedure of installing an automobile tire on a rim, the operator rst mounts one bead of the tire on the rim, and then inserts the inner tube within the tube. It is then necessary to insert one hand between the other tire bead, which has not yet been installed on the rim, and the rim, and to push the Valve stem through the valve hole in the rim. With the other hand the operator applies a valve tool to the valve stem from the outside. It is then possible to mount the other bead of the tire on the rim. This procedure is awkward and painful.

Accordingly, a principal object of this invention is to provide a tool for pulling the valve stem through the hole in the rim.

The accompanying drawings illustrate a preferred embodiment of the invention, but it is understood that modifications may be made therein without departing from the spirit of the invention as hereinafter claimed.

Figure 1 is a front elevation of the new and improved tool.

Figure 2 is a View, in section, of the tool as applied to a valve stem, with the inside of the valve stem omitted.

Figure 3 is an enlarged view, partially in section, of the cooperating parts of the tool and the valve stem.

The new and improved tool comprises a cylindrical body I0, that may be solid or hollow. One end of the tool is provided with a threaded portion II adapted to mesh with the inside of a Valve stem. The body I is of greater cross-section than the threaded portion II, the intermediate portion I2 being tapered to provide a seat for the tool on the valve stem.

Extending from the threaded portion II is a smooth cylindrical portion I4, of smaller diameter than the threaded portion Il. The smooth portion I4 is intended to serve as a means for aligning the tool in the valve stem for the purpose of facilitating the purchase of the threaded portion II with the inside of the valve stem. Ex-

tending outwardly from the smooth portion I4 is a pointed tip I6 to serve as a starter.

The opposite end of the tool is provided with a knurled portion i8 to serve as a iinger grip. It may also be provided with a perpendicular pin I9 to serve as a handle, and the pin I9 may be either permanently attached to the body IIi or may be removable therefrom. The same end of the tool may also be provided with a valve core extractor 20.

In the operation of the device, the valve stem 39 of the inner tube 3| is properly aligned on the inside of the rim with the valve opening in the rim. The tool isthen applied from the outside until the threaded portion I I is engaged with the inside of the valve stem 30. It is then a simple matter to pull the tool until the valve stem 30 is in proper position.

What is claimed is:

A tool for pulling an inner tube valve stem Athrough a valve stem receiving hole in a tire rim comprising an elongated cylindrical body of a size to pass freely through a valve stem receiving hole in a tire rim, an externally screw-threaded extension of reduced diameter on one end of said cylindrical body, said extension being of a size to thread into a valve stem and having a tapered, conical portion at its outer end to facilitate inserting said extension into a valve stem, a tapered annular shoulder between said body and said extension providing a seat for the end of a valve stem into which said extension is threaded, and a handle carried by said body near the end thereof remote from said extension.

FRANCIS D. WEBSTER.

REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PA'I'ENTSl Number Name Date 1,308,219 Brucker July 1, 1919 FOREIGN PATENTS Number Country Date 308,455 Great Britain Mar. 28, 1929 

